PoS - Proceedings of Science
Volume 449 - The European Physical Society Conference on High Energy Physics (EPS-HEP2023) - T12 Detector R&D and Data Handling
Assessing the potential of quantum annealers for track reconstruction at LUXE
A. Kropf*, F. Meloni and Y.C. Yap
Full text: pdf
Pre-published on: December 14, 2023
Published on: March 21, 2024
UXE (Laser Und XFEL Experiment) is a proposed DESY experiment using the European XFEL
electron beam and a high-intensity laser. The experiment’s primary aim is to investigate the
transition from the well-probed perturbative to the non-perturbative Quantum Electrodynamics
regime. In LUXE, positrons are generated and directed towards a four-layered silicon pixel
detector, with occupancies of up to 100 hits/mm2 for the initial phase. Reconstructing tracks
from a substantial set of hits poses a significant challenge for classical computers. To address
this challenge, the novel approach based on formulating the track pattern recognition task as
a quadratic unconstrained binary optimisation (QUBO) problem is adopted. Classically, the
expected performance of a quantum annealer for QUBO problems can be studied using Simulated
Annealing. In this report, the performance of reconstructing tracks from LUXE using Simulated
Annealing is benchmarked against results from a gate-based quantum computing simulator, as
well as against the classical method of employing a Combinatorial Kalman Filter.
DOI: https://doi.org/10.22323/1.449.0601
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